19399000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1061

約数の個数: 64

約数和(自身を含む): 47829600

約数和(自身を除く): 28430600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1021, 1900, 2042, 2375, 3800, 4084, 4750, 5105, 8168, 9500, 10210, 19000, 19399, 20420, 25525, 38798, 40840, 51050, 77596, 96995, 102100, 127625, 155192, 193990, 204200, 255250, 387980, 484975, 510500, 775960, 969950, 1021000, 1939900, 2424875, 3879800, 4849750, 9699500, 19399000]

約数ペア:

[(1, 19399000), (2, 9699500), (4, 4849750), (5, 3879800), (8, 2424875), (10, 1939900), (19, 1021000), (20, 969950), (25, 775960), (38, 510500), (40, 484975), (50, 387980), (76, 255250), (95, 204200), (100, 193990), (125, 155192), (152, 127625), (190, 102100), (200, 96995), (250, 77596), (380, 51050), (475, 40840), (500, 38798), (760, 25525), (950, 20420), (1000, 19399), (1021, 19000), (1900, 10210), (2042, 9500), (2375, 8168), (3800, 5105), (4084, 4750)]